Frayn, M. (2010). Michael Frayn Plays 4: Copenhagen - democracy - afterlife, with an introduction by the author. Methuen Drama.
Cita Chicago (17th ed.)Frayn, Michael. Michael Frayn Plays 4: Copenhagen - Democracy - Afterlife, with an Introduction by the Author. London: Methuen Drama, 2010.
Cita MLA (9th ed.)Frayn, Michael. Michael Frayn Plays 4: Copenhagen - Democracy - Afterlife, with an Introduction by the Author. Methuen Drama, 2010.
Atenció: Aquestes cites poden no estar 100% correctes.